Celestial hemisphere:  Southern  ·  Constellation: Centaurus (Cen)  ·  Contains:  NGC 5139  ·  omega Cen
Omega Centauri NGC 5139, Barry Brook
Omega Centauri NGC 5139
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Omega Centauri NGC 5139

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Description

Omega Centauri is a globular cluster in the constellation of Centaurus located at a distance of 15,800 light-years. It is the largest globular cluster in the Milky Way galaxy at a diameter of roughly 150 light-years, containing around 10 million stars. Some think it may be the core of a captured dwarf galaxy.

This was a test image, to assess the DSO capability of my ZWO ASI120MM guide camera. It is uncooled, and really meant for planetary imaging and as a sensitive autoguider (the main purpose I put it to!), but I thought it might be fun to try it out. I had the gain turned up high so that I could take short images, as these were unguided.

This is an HDR image with 1 sec and 10 sec exposures: 80 x L and 40 x R, G and B for each.

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  • Omega Centauri NGC 5139, Barry Brook
    Original
  • Final
    Omega Centauri NGC 5139, Barry Brook
    B

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Omega Centauri NGC 5139, Barry Brook